Comparison

Lock Screen Calendar vs Spark Catcher

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lock Screen Calendar

This app helps you manage your time and overcome procrastination by organizing tasks based on importance and urgency. It offers a focus timer to help you complete tasks efficiently and reduce stress.

Highlights
  • Priority setting by importance and urgency
  • Step-by-step task organization
  • Time allocation for tasks
  • Focus timer for task completion
  • Stress reduction and productivity boost
Features
Read full description

[Say Goodbye to Procrastination] The Eisenhower Matrix is a proven way to manage your time and beat procrastination. Sort your tasks by importance and urgency, focus on what matters first, and stop feeling overwhelmed. [Key Features] - Set priorities: Organize tasks by importance and urgency. - Manage your time: Fit tasks into your day and handle them efficiently. - Focus Timer: Stay focused and finish tasks within set sessions. - Everywhere: Home and Lock Screen widgets, synced across iPhone, iPad, and Mac. Many users say it helped them reduce stress and boost their productivity. Make your day clearer with CoreTask. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Spark Catcher

Features
Read full description

Capture ideas the moment they strike. Save everything useful before it slips away. Spark Catcher brings notes, tasks, and clippings together in one place, then keeps them organized across iPhone, iPad, and Mac. Free Features Fast capture - Create notes and tasks right away - Capture notes and tasks directly from the Home Screen widget - Save webpages, links, and selected text from Safari and other apps through the Share menu Organization and search - Switch between All Items, Notes, Tasks, and Clippings from the bottom bar - Organize with groups, tags, flags, priorities, due dates, and reminders - Edit and preview Markdown, then find entries quickly - Search OCR text from screen captures saved on Mac - Keep notes and tasks visible in pinned panels on Mac - Use every theme Spark Catcher Pro — In-App Purchase Required The following features require Spark Catcher Pro: - Two-way iCloud sync - Two-way Reminders integration - Markdown folder sync with Obsidian - Voice quick notes using speech recognition - Related-entry search and group suggestions - Rich-text and image-card sharing Spark Catcher Pro is available through a monthly subscription, annual subscription, or one-time purchase. All purchase options unlock the same Pro features. Privacy Policy https://www.studioyona.co.kr/en/apps/spark-catcher/legal/privacy/ Terms of Use https://www.studioyona.co.kr/en/apps/spark-catcher/legal/terms/

Screenshots

Lock Screen Calendar4 screens
Spark Catcher3 screens

Verdict

The call

The clearest difference is iOS requirement: Lock Screen Calendar at 18.0 against Spark Catcher's 26.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lock Screen Calendar sells 7 in-app purchases, starting at $4.49 per month and Spark Catcher sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lock Screen Calendar ships an update every 3 days, Spark Catcher every 6 days. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

Scorecard1 real difference · 9 level
Lock Screen Calendar versus Spark Catcher: the parameters behind the verdict, then further details
ParameterLock Screen CalendarSpark Catcher
PriceFreeFree
Rating5.0 (19 ratings) — better—
Positive reviews88.2% of reviews—
Number of ratings19 — better—
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.0 — better26.1
Further details — not scored
Size38 MB28 MB
Age rating4+4+
DeveloperGridus Co.LEE NAYOUNG

In-app purchases

7 purchases

Lock Screen Calendar

Subscriptions5
  • Monthly Plan$4.491 Month
  • Weekly Plan$4.497 Days
  • Monthly Plan$5.991 Month
Show 2 more
  • Annual Plan$29.991 Year
  • Annual Plan1 Month trial$39.991 Year
One-time2
  • Lifetime Plan$29.99
  • Lifetime Plan$59.99
3 purchases

Spark Catcher

Subscriptions2
  • Spark Catcher Pro Monthly$0.991 Month
  • Spark Catcher Pro Yearly$11.991 Year
One-time1
  • Spark Catcher Pro One-Time Purchase$29.99

Questions

Is Lock Screen Calendar free?
Lock Screen Calendar is free to download, with in-app purchases available.
Is Spark Catcher free?
Spark Catcher is free to download, with in-app purchases available.
Do Lock Screen Calendar or Spark Catcher have ads?
Neither Lock Screen Calendar nor Spark Catcher shows ads.
Which is updated more often, Lock Screen Calendar or Spark Catcher?
Lock Screen Calendar ships an update every 3 days, and Spark Catcher every 6 days. Most recently, Lock Screen Calendar was updated on October 16, 2026 and Spark Catcher on September 26, 2026.

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